Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: The BUG function call has been removed after failing to insert a delayed directory index entry. Instead of calling BUG when we fail to insert a delayed directory index entry into the delayed node’s tree, we can simply...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: drm/msm/dsi: fixed memory corruption caused by too many bridges. Added a missing sanity check on the bridge counter to prevent corruption of data beyond the fixed-sized bridge array, in case there are ever more than eight...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: s3fb: Check the size of the screen before memsetio In the function s3fbsetpar, the value of ‘screensize’ is calculated based on user input. If the user provides an incorrect value, the value of ‘screensize’ may be...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: watchqueue: Fix for filter limit check In watchqueuesetfilter, there are several places where we check that the filter type value does not exceed what the typefilter bitmap can hold. One place calculates the number of bits using...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Added a 0-byte size check to mtkdrmgemobj. A check was added to mtkdrmgeminit if we attempt to allocate a GEM object of 0 bytes. Currently, no such check exists, and the kernel will panic if a user-space application...

Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject variable offset alu on PTRTOFLOWKEYS For PTRTOFLOWKEYS, the checkflowkeysaccess function only uses a fixed offset for validation. However, the variable offset ptr isn’t prohibited for this type of pointer. Therefore,...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: spi: spi-zynq-qspi: Fixed a NULL pointer dereferencing in zynqqspiexecmemop. In zynqqspiexecmemop, kzalloc is directly used in memset, which could lead to a NULL pointer dereferencing if kzalloc fails. This bug was fixed by addin...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/sched: Abort tcmodifyqdisc if parent class does not exist Lion’s patch 1 uncovered an ancient bug in the qdisc API. Whenever a user creates or modifies a qdisc with another qdisc as its parent, the qdisc API will detect that...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ocfs2: Passing a u64 value to ocfs2truncateInline may lead to an overflow. Syzbot reported a kernel bug in ocfs2truncateInline. There are two reasons for this: first, the passed parameter value is greater than...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/sti: avoided potential dereferencing of error pointers in stihqvdpatomiccheck. The return value of drmatomicgetcrtcstate needs to be checked. This is done to avoid using the error pointer ‘crtcstate’ in case of a failure...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: does not allow unaligned truncation on released compress inode An F2FS image may become corrupted after performing the following test cases: - mkfs.f2fs -O extraattr,compression -f /dev/vdb - mount /dev/vdb...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: jbd2: fixed data-race and null-ptr-deref in jbd2journaldirtymetadata Since handle-htransaction may be a NULL pointer, we should change it by calling ishandleabortedhandle before dereferencing it. The following data-race was...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: Fixed a UAF vulnerability in class handling This patch addresses a Use-After-Free vulnerability in the HFSC qdisc class handling. The issue arises due to a time-of-check/time-of-use condition in hfscchangeclass,...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: USB: serial: quatech2: fix null-ptr-deref in qt2processreadurb This patch addresses a null-ptr-deref in qt2processreadurb due to an incorrect bounds check in the following code: c if newport serial-numports deverr&port-dev, “%s -...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: jbd2: fixed a potential use-after-free issue in jbd2fcwaitbufs. In jbd2fcwaitbufs, using bh after referencing the buffer’s head count may lead to a use-after-free. Therefore, ensure that the buffer is updated before referencing i...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: efivarfs: Fixed a slab-out-of-bounds issue in efivarfsdcompare. This issue was observed in kernel version 6.6 present on master as well. Bugs: - KASAN: Slab-out-of-bounds in memcmp+0x98/0xd0 - Call trace: kasancheckrange+0xe8/0x1...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Added a check for kzalloc. Since kzalloc may fail and return a NULL pointer, it’s better to check the return value in order to avoid dereferencing a NULL pointer. Patchwork:...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: jfs: fixed a null pointer dereference in dtInsertEntry Reported by syzbot General protection fault, likely for a non-canonical address 0xdffffc0000000001: 0000 1 PREEMPT SMP KASAN PTI KASAN: nullptrderef in range...

Astra Linux – Vulnerability in Poppler

A issue was discovered in Poppler 0.71.0. There is a potentially fatal abort in Object.h; this will lead to a denial of service, as EmbFile::save2 in FileSpec.cc lacks a stream check before saving an embedded file...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: jfs: Regular file corruption check The reproducer builds a corrupted file on disk with a negative isize value. Add a check when opening this file to avoid subsequent operation failures...